official in the clinton administration. he now teaches at lehigh university. and hisham melhem, washington bureau chief of al-arabiya news. gentlemen, good to have you both with us. so let me start with you, henri barkey, we heard in that report an accident, a stray shell. how did events come to this? >> well, there's a lot of fighting on the border. there's been shelling before. this is not the first time that shells fell on the turkish side. in fact, last week the turks sent a protest to the syrians because there was a whole series of shells that fell on to farm so if this had happened differently yesterday, in other words, if the shells had fallen on farmland and not killed five people we wouldn't be discussing this tonight and there would not be a security council resolution. so it's a little bit happenstance to some extent. >> warner: but the tension between the two countries has been building? >> the tension has been building. the turks are supporting the free syrian army. they're allowing the free syrian army a base to operate against syria. the turkish government has taken a very s